sec 0 de 1 sec 0 tan 0+ In sec 0 + tan 0| to evaluate the integral. Then use the fact that sec° 0 de = Question (4): Evaluate the following integrals: dx dx dx dx; Vx2 – 9 J ' x² V25 – x2 V12x-x2 Question (5): Evaluate x arctan x dx. At some point in the process, you're going to find the term x² dx Do the algebra to show that =1- and explain why it it is useful to transform 1+ x2 x2 in this way. 1+ x2 1+ x2' 1+x2

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A: (a) Given that the percentage of stadiums have just built in the past 20 years is, P=15%=15/100=0.15…

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Q: with

A:

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.